Which one of the following conditions will favour maximum formation of the product in the reaction

${\mathrm{A}}_{2\left(\mathrm{g}\right)}+{\mathrm{B}}_{2\left(\mathrm{g}\right)}\rightleftharpoons {\mathrm{X}}_{2\left(\mathrm{g}\right)},{\mathrm{\Delta }}_{\mathrm{r}}\mathrm{H}=-\mathrm{X} \mathrm{kJ}?$

• A

  Low temperature and high pressure

• B

  Low temperature and low pressure

• C

  High temperature and high pressure

• D

  High temperature and low pressure